807
FXUS65 KBYZ 081117
AFDBYZ
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BILLINGS MT
517 AM MDT TUE SEP 8 2026
KEY MESSAGES
- WINDY CONDITIONS CONTINUE TODAY, WITH GUSTS OF 20 TO 45 MPH,
GREATEST IN EASTERN MT. THIS WILL CAUSE ELEVATED FIRE WEATHER
CONDITIONS.
- WARMER AND DRIER CONDITIONS RETURN MID-WEEK. OCCASIONALLY BREEZY
CONDITIONS WILL CAUSE ELEVATED FIRE WEATHER CONDITIONS.
- A PATTERN CHANGE TO COOLER WITH AN INCREASED CHANCE OF
PRECIPITATION RETURNS FRIDAY INTO THE WEEKEND. DETAILS REMAIN
UNCERTAIN. STAY UP TO DATE WITH THE LATEST FORECAST.
DISCUSSION
TODAY THROUGH MONDAY...
WINDY CONDITIONS WILL CONTINUE TODAY AS THE INFLUENCE OF AN UPPER
LOW MOVING ACROSS SOUTHERN CANADA REMAINS OVER THE REGION. WEST TO
NORTHWEST WINDS GUSTING 20 TO 45 MPH WILL BE COMMON, WITH THE
STRONGEST GUSTS IN EASTERN MONTANA. THE CHANCE FOR PRECIPITATION
TODAY WILL BE FAIRLY LOW, WITH THE EXCEPTION OF ISOLATED SHOWERS
AND THUNDERSTORMS LATE THIS AFTERNOON AND EVENING AS A WEAK WAVE
MOVES ACROSS THE STATE. THE PRIMARY CONCERNS WITH ANY ACTIVITY
WILL BE GUSTY WINDS.
WHILE TEMPERATURES WILL BE SLIGHTLY BELOW NORMAL TODAY (HIGHS IN
THE 70S TO AROUND 80), THE DRY AND WINDY CONDITIONS WILL RESULT
IN ELEVATED FIRE WEATHER CONDITIONS.
WARMER AND DRIER CONDITIONS CONTINUE WEDNESDAY AND THURSDAY, WITH
TEMPERATURES CLIMBING BACK INTO THE 80S TO LOW 90S (WARMEST
THURSDAY). BREEZY WINDS WILL CONTINUE EACH DAY, WITH GUSTS IN THE
20S TO 40S MPH, STRONGEST IN THE FOOTHILLS WEST OF BILLINGS AND
ALL AREA MOUNTAINS EACH DAY. THE COMBINATION OF ABOVE NORMAL
TEMPERATURES, LOW RELATIVE HUMIDITY VALUES, AND WINDY CONDITIONS
WILL BRING ELEVATED FIRE WEATHER CONDITIONS EACH DAY, ESPECIALLY
THURSDAY. PLEASE TAKE CARE NOT TO CAUSE A SPARK!
LOOKING TOWARDS FRIDAY AND THE WEEKEND, FORECAST CERTAINTY
DECREASES. SEVERAL MODALS CONTINUE TO SHOW A COOLER AND WETTER
SYSTEM DIGGING INTO THE REGION BUT DISAGREE ON THE TRACK AT THIS
TIME. MOUNTAIN SNOWFALL WILL BE POSSIBLE WITH THIS SYSTEM SO
CONTINUE TO MONITOR THE FORECAST IF YOU HAVE OUTDOOR PLANS IN THE
HIGH COUNTRY! MATOS
AVIATION
12Z TAF/AVIATION DISCUSSION...GUSTY WINDS WILL BE THE MAIN
AVIATION IMPACT OVER THE NEXT 24 HOURS. IN THE EASTERN HALF,
OF THE FORECAST AREA GUSTY WEST WINDS WILL INCREASE JUST AFTER
SUNRISE, WITH GUSTS IN THE 25-35KT RANGE BECOMING COMMON INTO THE
AFTERNOON HOURS. FOR THE WESTERN HALF OF THE FORECAST AREA WINDS
WILL INCREASE MID-DAY AND CONTINUE THROUGH THE AFTERNOON, WITH
GUSTS IN THE 20-35KT RANGE. THE HRRR CONTINUES TO SHOW A FEW
SHOWERS/THUNDERSTORMS CROSSING THE AREA THIS AFTERNOON, DEVELOPING
NEAR BILLINGS AROUND 21-22Z AND SHIFTING EAST TOWARD MILES CITY
BY 01Z AND DISSIPATING SHORTLY THEREAFTER. MAIN IMPACT WITH THIS
ACTIVITY WILL BE TO GUSTY WINDS AROUND 35KTS AS IT PUSHES STRONGER
WINDS ALOFT TOWARD THE SURFACE. GUSTY WINDS WILL TAPER OFF AROUND
SUNSET THIS EVENING. CHAMBERS
PRELIMINARY POINT TEMP/POPS
TDY WED THU FRI SAT SUN MON
-------------------------------------------------------
BIL 074 048/081 052/088 055/071 045/065 043/061 041/066
1/U 20/U 00/U 02/W 12/W 55/W 32/W
LVM 071 039/079 046/085 048/071 038/063 035/059 034/066
2/W 00/N 00/N 13/W 13/T 55/T 31/B
HDN 078 044/082 045/091 049/073 041/070 040/064 037/067
0/U 20/U 00/U 02/W 11/B 54/W 32/W
MLS 075 049/079 050/089 053/072 043/067 043/064 041/064
0/N 20/U 00/U 02/W 21/B 54/W 42/W
4BQ 078 049/080 051/090 055/075 044/071 046/067 042/066
0/U 00/U 00/U 00/U 11/B 54/W 42/W
BHK 077 045/079 047/090 050/075 039/069 039/066 037/064
0/N 20/U 00/U 01/N 21/B 55/W 52/W
SHR 075 042/077 044/088 051/074 039/070 040/064 036/067
0/U 00/U 00/U 01/U 12/W 54/W 31/B
BYZ WATCHES/WARNINGS/ADVISORIES
MT...NONE.
WY...NONE.
WEATHER.GOV/BILLINGS
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